As a result of the black death in western europe:

It resulted in deaths of millions ranging from 75-200 million people. About 30% of Europe's population.

While it is not known for certain how many people died, it is estimated that about 25 million people died in Europe from the plague during the Black Death. The Black Death is widely believed to have been the result of plague, caused by infection with the bacterium Yersinia pestis.

the answer is c my brotha. c.   formed an alliance with the soviet union.

health care plans in the united states having high costs because they are focusing on providing quality programs for different groups of individuals. the quality of the service is based on money flow received from the members. without this investment, couldn't be possible a constant scientific searching to prevent death and illness caused because of low levels of health investigation. currently, the complaints are not about the highest cost, but about the coverage and benefits to access the necessary health services required by the members.  

besides, if a global health system is established the quality levels will fall down because of the standardized of the health. the access to care will increase but the quality will be low because it depends on the money invested.